Investigation of the reactivity of the biradical [P(µ-NTer)]2 towards bromoalkanes and follow-up chemistry
Poster presentation by Jan Rosenboom
Jan Rosenboom, Jonas Bresien, Lukas Chojetzki, Axel Schulz, Tim Suhrbier, Alexander Villinger, Ronald Wustrack
Group 15 open-shell singlet biradicals of the type [E(μ-NR)]2 (E = P, As) have been in focus of our group’s research for several years. They can be accessed by reduction of their halogenated precursors (e.g. [ClP(μ-NTer)]2).
It is known from previous research that group 15 biradicals show very high reactivity towards small molecules, e.g. allowing the activation of double and triple bonds. In our current study the reactivity of the biradical [P(μ-NTer)]2 (A, Scheme 1) towards various bromoalkanes was investigated.
Scheme 1. Addition of various bromoalkanes to [P(μ-NTer)]2.
The biradical selectively activated the C−Br bond, forming the addition product B whereone phosphorous atom bears a bromine atom as substituent and the other a varying the organic group R.
The follow-up-chemistry of the [P(μ-NTer)]2-bromoalkane adducts is being studied.
Figure 1. Structure of the bromoalkane adduct to [TerNP]2 as determined by single crystal X-ray diffraction.
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